Answer: Scientists have recorded five significant ice ages throughout the Earth's history: the Huronian (2.4-2.1 billion years ago), Cryogenian (850-635 million years ago), Andean-Saharan (460-430 mya), Karoo (360-260 mya) and Quaternary (2.6 mya-present).
I have been to China and have been to the great wall and etc. SO i am a expert so ya
Answer:
C
Explanation:
A few videos do the trick
